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/* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/*
Optimized function-like macros for the x86 architecture (_WIN32 included).
*/
#define sint2korr(A) (*((int16 *) (A)))
#define sint3korr(A) ((int32) ((((uchar) (A)[2]) & 128) ? \
(((uint32) 255L << 24) | \
(((uint32) (uchar) (A)[2]) << 16) |\
(((uint32) (uchar) (A)[1]) << 8) | \
((uint32) (uchar) (A)[0])) : \
(((uint32) (uchar) (A)[2]) << 16) |\
(((uint32) (uchar) (A)[1]) << 8) | \
((uint32) (uchar) (A)[0])))
#define sint4korr(A) (*((long *) (A)))
#define uint2korr(A) (*((uint16 *) (A)))
#define uint3korr(A) (uint32) (((uint32) ((uchar) (A)[0])) +\
(((uint32) ((uchar) (A)[1])) << 8) +\
(((uint32) ((uchar) (A)[2])) << 16))
#define uint4korr(A) (*((uint32 *) (A)))
#define uint5korr(A) ((ulonglong)(((uint32) ((uchar) (A)[0])) +\
(((uint32) ((uchar) (A)[1])) << 8) +\
(((uint32) ((uchar) (A)[2])) << 16) +\
(((uint32) ((uchar) (A)[3])) << 24)) +\
(((ulonglong) ((uchar) (A)[4])) << 32))
#define uint6korr(A) ((ulonglong)(((uint32) ((uchar) (A)[0])) + \
(((uint32) ((uchar) (A)[1])) << 8) + \
(((uint32) ((uchar) (A)[2])) << 16) + \
(((uint32) ((uchar) (A)[3])) << 24)) + \
(((ulonglong) ((uchar) (A)[4])) << 32) + \
(((ulonglong) ((uchar) (A)[5])) << 40))
#define uint8korr(A) (*((ulonglong *) (A)))
#define sint8korr(A) (*((longlong *) (A)))
#define int2store(T,A) *((uint16*) (T))= (uint16) (A)
#define int3store(T,A) do { *(T)= (uchar) ((A));\
*(T+1)=(uchar) (((uint) (A) >> 8));\
*(T+2)=(uchar) (((A) >> 16));\
} while (0)
#define int4store(T,A) *((long *) (T))= (long) (A)
#define int5store(T,A) do { *(T)= (uchar)((A));\
*((T)+1)=(uchar) (((A) >> 8));\
*((T)+2)=(uchar) (((A) >> 16));\
*((T)+3)=(uchar) (((A) >> 24));\
*((T)+4)=(uchar) (((A) >> 32));\
} while(0)
#define int6store(T,A) do { *(T)= (uchar)((A)); \
*((T)+1)=(uchar) (((A) >> 8)); \
*((T)+2)=(uchar) (((A) >> 16)); \
*((T)+3)=(uchar) (((A) >> 24)); \
*((T)+4)=(uchar) (((A) >> 32)); \
*((T)+5)=(uchar) (((A) >> 40)); \
} while(0)
#define int8store(T,A) *((ulonglong *) (T))= (ulonglong) (A)
typedef union {
double v;
long m[2];
} doubleget_union;
#define doubleget(V,M) do { doubleget_union _tmp; \
_tmp.m[0] = *((long*)(M)); \
_tmp.m[1] = *(((long*) (M))+1); \
(V) = _tmp.v;\
} while(0)
#define doublestore(T,V) do { *((long *) T) = ((doubleget_union *)&V)->m[0]; \
*(((long *) T)+1) = ((doubleget_union *)&V)->m[1];\
} while (0)
#define float4get(V,M) do { *((float *) &(V)) = *((float*) (M)); } while(0)
#define float8get(V,M) doubleget((V),(M))
#define float4store(V,M) memcpy((uchar*)(V), (uchar*)(&M), sizeof(float))
#define floatstore(T,V) memcpy((uchar*)(T), (uchar*)(&V), sizeof(float))
#define floatget(V,M) memcpy((uchar*)(&V),(uchar*) (M), sizeof(float))
#define float8store(V,M) doublestore((V),(M))
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